It is impossible to read a Bandit Stash Map inside a house. If the player tries to do it, the Map will open, but no X mark will be displayed. However, when the player leaves the house, the X will be on the map.
If the player uses ConsoleCommands to spawn a Bandit Stash Map, it will not be readable by the Character, and will vanish from the Inventory upon trying.
The X symbol appearing on the Map to indicate a Secret Bandit Camp's location.